The structure of a ventilated facade allows water vapour accumulated inside the building to penetrate to the outside through the wall and thermal insulation and then evaporate freely. In order for the ventilation gap to function properly, fresh air must be allowed to enter at the bottom of the facade. The buoyant force causes the air to move upwards to the top of the facade and pass outside through the ventilation slot.
The cladding of a ventilated facade made of composite panels insulates and protects the wall from weather conditions. When the insulation layer comes into contact with rain, the water is retained on the thermal insulation film, which prevents it from absorbing water. The great advantage of a ventilated facade is that in summer, hot air is drawn away through a ventilation gap, which cools the thermal insulation and walls of the building. Staying in the building during the summer months can be pleasant.